EP1232121B1 - Verfahren zur reduzierung von schadorganismen in wasserströmen - Google Patents
Verfahren zur reduzierung von schadorganismen in wasserströmen Download PDFInfo
- Publication number
- EP1232121B1 EP1232121B1 EP00960586A EP00960586A EP1232121B1 EP 1232121 B1 EP1232121 B1 EP 1232121B1 EP 00960586 A EP00960586 A EP 00960586A EP 00960586 A EP00960586 A EP 00960586A EP 1232121 B1 EP1232121 B1 EP 1232121B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- acid
- currents
- cooling
- harmful organisms
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Revoked
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- 239000000498 cooling water Substances 0.000 claims abstract description 19
- SCKXCAADGDQQCS-UHFFFAOYSA-N Performic acid Chemical compound OOC=O SCKXCAADGDQQCS-UHFFFAOYSA-N 0.000 claims abstract description 17
- 241000237536 Mytilus edulis Species 0.000 claims abstract description 16
- 235000020638 mussel Nutrition 0.000 claims abstract description 16
- 241000195493 Cryptophyta Species 0.000 claims abstract description 12
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 claims description 26
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 description 22
- 244000005700 microbiome Species 0.000 description 7
- 230000012010 growth Effects 0.000 description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 5
- 239000000460 chlorine Substances 0.000 description 5
- 229910052801 chlorine Inorganic materials 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 241000244206 Nematoda Species 0.000 description 3
- 230000003373 anti-fouling effect Effects 0.000 description 3
- 230000007257 malfunction Effects 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 230000002147 killing effect Effects 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 230000003641 microbiacidal effect Effects 0.000 description 2
- 210000003097 mucus Anatomy 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- WBOQHFMXKCEWSQ-UHFFFAOYSA-N 4-hydroperoxy-4-oxobutanoic acid Chemical compound OOC(=O)CCC(O)=O WBOQHFMXKCEWSQ-UHFFFAOYSA-N 0.000 description 1
- VQAMBJLPYQLDLP-UHFFFAOYSA-N 5-hydroperoxy-5-oxopentanoic acid Chemical compound OOC(=O)CCCC(O)=O VQAMBJLPYQLDLP-UHFFFAOYSA-N 0.000 description 1
- KCAZSAYYICOMMG-UHFFFAOYSA-N 6-hydroperoxy-6-oxohexanoic acid Chemical compound OOC(=O)CCCCC(O)=O KCAZSAYYICOMMG-UHFFFAOYSA-N 0.000 description 1
- 241000206761 Bacillariophyta Species 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- 241000195628 Chlorophyta Species 0.000 description 1
- 241000193901 Dreissena polymorpha Species 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 206010061217 Infestation Diseases 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000005791 algae growth Effects 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 239000003139 biocide Substances 0.000 description 1
- ADKBGLXGTKOWIU-UHFFFAOYSA-N butanediperoxoic acid Chemical compound OOC(=O)CCC(=O)OO ADKBGLXGTKOWIU-UHFFFAOYSA-N 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000001418 larval effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- CZPZWMPYEINMCF-UHFFFAOYSA-N propaneperoxoic acid Chemical compound CCC(=O)OO CZPZWMPYEINMCF-UHFFFAOYSA-N 0.000 description 1
- 230000000069 prophylactic effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000009044 synergistic interaction Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
Definitions
- the invention is directed to a method for reduction of harmful organisms from the series of algae, mussels and slime formers in continuously or periodically flowing Water flows, in particular cooling water flows, comprehensive Adding an aqueous treatment agent which contains at least one peroxycarboxylic acid with 1 to 6 carbon atoms.
- the invention is particularly directed to the Use treatment agents in an economical manner and Malfunctions such as those caused by the growth of mussels in pipes and apparatus through which water flows to avoid occurring safely.
- Cooling systems In industry and in power plants is used for cooling purposes Water is used as a coolant, the water passing through the corresponding cooling systems flows. Structure and scope of Cooling systems, the necessary cooling water treatment processes and the investment-related options may vary from case to case Case to be very different. It is with the The available options are trying to get one maintain trouble-free and economical cooling operation.
- the recooling can be done in open Recoolers are made, taking the water to be cooled in counter, cross or cross flow with air in contact brought.
- the recirculation cooling water can be cooled take place in surface heat exchangers, whereby on the cool side of the heat exchanger with flow or open circuit cooling can be worked.
- continuous cooling often has the advantage that the annual mean water temperatures are lower than with circulation cooling and that investment costs for one Cooling tower operation and a special water treatment saved can be.
- water has a number of essential requirements meet, including a low corrosiveness and a low Tendency to form deposits on mineral Basis (scaling), organic basis (fouling) or by growth of microorganisms (biofouling).
- Algae make up a large group of in cooling water flows occurring microorganisms, which are found in practically every Grow the open cooling circuit at the places accessible to light can. Dense coatings of algae on material surfaces reduce the effectiveness of cooling systems and often serve as a source of nutrients for bacteria, fungi, Protozoa and worms found in most open cooling systems are to be found. If parts of the algae growth fall off, pipes, sieves and nozzles can become blocked.
- Effective means for the treatment of standing and flowing Water to control microorganisms such as mucus Bacteria and algae, and higher harmful organisms, like nematodes and shells, are hydrogen peroxide and one aqueous aqueous peroxycarboxylic acid containing Solutions (Degaclean® product information from DegussaHüls AG (10/99)).
- U.S. Patent 5,393,781 teaches a method of control the zebra mussel in aqueous systems, such as in water treatment plants in industry and in power plants. in this connection the water with a biocidally effective amount of peroxyacetic acid treated.
- the amount used is at least 0.1 ppm, but usually 10 mg / l and more are necessary to an acceptable killing rate of the mussels in sufficient To achieve time.
- As a treatment agent at least 1% by weight peroxyacetic acid solution expediently a so-called equilibrium peracetic acid, which in addition to peroxyacetic acid, also hydrogen peroxide and acetic acid contains, used.
- a continuous dosage of the treatment agent in the flowing water is efficient, but it leads to one high consumption and thus high costs.
- the US document focuses on the batchwise treatment of water, there but no suggestion of how continuous or at least periodically flowing water flows, such as cooling water flows, should be treated economically.
- the object of the invention is accordingly to demonstrate a method with which the treatment of water flows, such as cooling water flows, which contain mussels and / or mussel larvae, possible in a through-flow system in a more economical way is.
- a method for reducing harmful organisms was found from the series of algae, mussels and slime formers in continuously or periodically flowing water flows, in particular cooling water flows, comprising adding a aqueous treatment agent containing at least one Peroxycarboxylic acid with 1 to 6 carbon atoms, characterized in that is that you give the treatment water to the flowing water once every 5 to 100 hours over a period of time from 3 to 60 minutes in an amount corresponding to at least 1 ppm peroxycarboxylic acid added.
- the treatment agent is preferably a aqueous solution which, in addition to at least one peroxycarboxylic acid the underlying carboxylic acid and hydrogen peroxide contains.
- the components are preferably located in the Equilibrium, and it is so-called Gleichclosperoxycarbonklaren.
- the agents preferably contain one or more peroxycarboxylic acids from the series peroxy formic acid, peroxyacetic acid, Peroxypropionic acid, mono- or diperoxysuccinic acid, Peroxyglutaric acid and peroxyadipic acid.
- the agent particularly preferably contains peroxyacetic acid and / or peroxy formic acid.
- Containing peroxy formic acid Means are easy by adding formic acid to one commercial peroxyacetic acid or to an aqueous Hydrogen peroxide solution available.
- the content of peroxycarboxylic acid (s) in the to be used is usually in the range from 1 to 35% by weight, in particular in the range from 5 to 15% by weight.
- the flowing water to be treated is periodic at least 1 ppm, preferably 2 to 5 ppm and in particular 5 to 20 ppm, peroxycarboxylic acid added.
- the duration of the addition of the agent and the time interval of the Periods depend on the temperature of the water and the nature of the harmful organisms. At a water temperature around / below 8 ° C is a treatment of, for example, twice per week for 5 to 60 minutes, especially 15 to 30 Minutes, appropriate.
- the cooling water flowing through the experimental apparatus was to reduce harmful organisms with equilibrium peracetic acid containing 15% by weight of peroxyacetic acid treated.
- the amount added was 40 ppm each 6 ppm peroxyacetic acid. Dosing was carried out once a day same time for a period of 15 minutes. While the dosage according to the invention (26 days) collected in Algae and mussel monitors do not show any harmful organisms.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Description
Claims (5)
- Verfahren zur Reduzierung von Schadorganismen aus der Reihe Algen, Muscheln und Schleimbildnern in kontinuierlich oder periodisch fließenden Wasserströmen, insbesondere Kühlwasserströmen, umfassend Zugabe eines wässrigen Behandlungsmittels, enthaltend mindestens eine Peroxycarbonsäure mit 1 bis 6 C-Atomen, in einer Menge entsprechend mindestens 1 ppm Peroxycarbonsäure,
dadurch gekennzeichnet, dass man dem strömenden Wasser das Behandlungsmittel einmal alle 5 bis 100 Stunden über einen Zeitraum von 3 bis 60 Minuten zudosiert. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, dass man dem stromenden Wasser das Behandlungsmittel täglich einmal 5 bis 30 Minuten zudosiert. - Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass man als Behandlungsmittel ein Wasserstoffperoxid und Peroxyessigsäure oder/und Peroxyameisensaure enthaltende wässrige Lösung, insbesondere Gleichgewichtslosung, verwendet. - Verfahren nach Anspruch 3,
dadurch gekennzeichnet, dass man eine Gleichgewichtsperoxyessigsäure mit einem Gehalt von 5 bis 15 Gew.-% Peroxyessigsäure verwendet. - Verfahren nach einem der Anspruche 1 bis 4,
dadurch gekennzeichnet, dass das strömende Wasser Kuhlwasser ist.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19956348A DE19956348A1 (de) | 1999-11-24 | 1999-11-24 | Verfahren zur Reduzierung von Schadorganismen in Wasserströmen |
| DE19956348 | 1999-11-24 | ||
| PCT/EP2000/008579 WO2001038234A1 (de) | 1999-11-24 | 2000-09-02 | Verfahren zur reduzierung von schadorganismen in wasserströmen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1232121A1 EP1232121A1 (de) | 2002-08-21 |
| EP1232121B1 true EP1232121B1 (de) | 2004-08-11 |
Family
ID=7930051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00960586A Revoked EP1232121B1 (de) | 1999-11-24 | 2000-09-02 | Verfahren zur reduzierung von schadorganismen in wasserströmen |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1232121B1 (de) |
| AT (1) | ATE273244T1 (de) |
| BR (1) | BR0015746B1 (de) |
| CA (1) | CA2389422C (de) |
| DE (2) | DE19956348A1 (de) |
| DK (1) | DK1232121T3 (de) |
| ES (1) | ES2225210T3 (de) |
| PT (1) | PT1232121E (de) |
| WO (1) | WO2001038234A1 (de) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5393781A (en) * | 1993-07-08 | 1995-02-28 | Fmc Corporation | Method for controlling zebra mussels |
| DE4344598A1 (de) * | 1993-12-24 | 1995-06-29 | Degussa | Verfahren zur Steuerung der Entgiftung cyanidischer Abwässer |
-
1999
- 1999-11-24 DE DE19956348A patent/DE19956348A1/de not_active Withdrawn
-
2000
- 2000-09-02 DK DK00960586T patent/DK1232121T3/da active
- 2000-09-02 ES ES00960586T patent/ES2225210T3/es not_active Expired - Lifetime
- 2000-09-02 WO PCT/EP2000/008579 patent/WO2001038234A1/de not_active Ceased
- 2000-09-02 CA CA002389422A patent/CA2389422C/en not_active Expired - Fee Related
- 2000-09-02 DE DE50007406T patent/DE50007406D1/de not_active Revoked
- 2000-09-02 PT PT00960586T patent/PT1232121E/pt unknown
- 2000-09-02 BR BRPI0015746-5A patent/BR0015746B1/pt not_active IP Right Cessation
- 2000-09-02 EP EP00960586A patent/EP1232121B1/de not_active Revoked
- 2000-09-02 AT AT00960586T patent/ATE273244T1/de active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001038234A1 (de) | 2001-05-31 |
| DE19956348A1 (de) | 2001-05-31 |
| EP1232121A1 (de) | 2002-08-21 |
| BR0015746A (pt) | 2005-05-10 |
| CA2389422A1 (en) | 2001-05-31 |
| PT1232121E (pt) | 2004-10-29 |
| DE50007406D1 (de) | 2004-09-16 |
| ATE273244T1 (de) | 2004-08-15 |
| ES2225210T3 (es) | 2005-03-16 |
| DK1232121T3 (da) | 2004-09-27 |
| BR0015746B1 (pt) | 2010-11-30 |
| CA2389422C (en) | 2009-11-17 |
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